Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus pa…
Exact source revision recorded 28 Oct 2026 06:06:33 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2026-30304
PublishedWasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is allocated. This is possible with the WebAssembly memory64 proposal where tables can have sizes in the 64-bit range as opposed to the previous 32-bit range which would not overflow. The panic happens when attempting to create a very large table, such as when instantiating a WebAssembly module or component. This vulnerability is fixed in 36.0.8, 43.0.2, and 44.0.1.
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: May 14, 2026, 2:54:32 PM
dateUpdated: Jul 28, 2026, 12:04:48 PM
4 related source bulletins · separate from aliases
openSUSE-SU-2026:10802-1: libtree-sitter0_26-0.26.8-3.1 on GA media
CVE-2026-44216
openSUSE-SU-2026:20863-1: Security update for tree-sitter
CVE-2026-44216
RHSA-2026:45341: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
CVE-2025-11233 · CVE-2026-44216
SUSE-SU-2026:22002-1: Security update for tree-sitter
CVE-2026-44216
- Source published
- May 14, 2026, 2:54:32 PM (timezone not stated)
- Source modified
- Jul 28, 2026, 12:04:48 PM (timezone not stated)
- Observed here
- 28 Oct 2026 06:06:33 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.
EUVD CVSS 4.0 · 5.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N